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x64: Lower tlsvalue, sqmul_round_sat, and uunarrow in ISLE (#4793)

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Lower tlsvalue, sqmul_round_sat, and uunarrow in ISLE.
This commit is contained in:
Trevor Elliott
2022-08-26 16:33:48 -07:00
committed by GitHub
parent 8e8dfdf5f9
commit 25d960f9c4
11 changed files with 287 additions and 205 deletions
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33
cranelift/codegen/src/isa/x64/lower/isle.rs
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@@ -911,6 +911,39 @@ impl Context for IsleContext<'_, '_, MInst, Flags, IsaFlags, 6> {
.use_constant(VCodeConstantData::WellKnown(&ZERO_MASK_VALUE))
}
#[inline]
fn sqmul_round_sat_mask(&mut self) -> VCodeConstant {
static SAT_MASK: [u8; 16] = [
0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0x80,
0x00, 0x80,
];
self.lower_ctx
.use_constant(VCodeConstantData::WellKnown(&SAT_MASK))
}
#[inline]
fn uunarrow_umax_mask(&mut self) -> VCodeConstant {
// 4294967295.0 is equivalent to 0x41EFFFFFFFE00000
static UMAX_MASK: [u8; 16] = [
0x00, 0x00, 0xE0, 0xFF, 0xFF, 0xFF, 0xEF, 0x41, 0x00, 0x00, 0xE0, 0xFF, 0xFF, 0xFF,
0xEF, 0x41,
];
self.lower_ctx
.use_constant(VCodeConstantData::WellKnown(&UMAX_MASK))
}
#[inline]
fn uunarrow_uint_mask(&mut self) -> VCodeConstant {
static UINT_MASK: [u8; 16] = [
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x30, 0x43,
];
self.lower_ctx
.use_constant(VCodeConstantData::WellKnown(&UINT_MASK))
}
fn emit_div_or_rem(
&mut self,
kind: &DivOrRemKind,